Honda Hawk GT NT650 1988 Service Manual page 76

COOLING SYSTEM
INSPECTION
Inspect the thermostat visually for damage.
Suspend the thermostat in heated water to check its opera-
tion.
NOTE
If the thermostat or thermometer touches the pan, you'll
get a false reading.
Replace thermostat if valve stays open at room temperature,
or if it responds at temperatures other than those specified.
Data:
Start to open 80° to 84°C (176-183°F)
Valve lift
8 mm (0.3 in) minimum when
heated to 95°C (203°F) for five
minutes.
INSTALLATION
Install the following:
- the thermostat into the housing case.
- the new O-ring into the case groove.
- the cover onto the case, with the bolts.
Assemble the case and filler neck with the new O-ring.
Tighten the bolts.
Install the thermostat housing case and filler neck onto the
frame.
Connect the removed hoses and tube securely.
Install the removed parts in the reverse order of removal.
Fill the system with coolant and air bleed it.
(6) HOUSING CASE
5-4
\
(2) THERMOMETER
(1) HOUSING MOUNTING BOLT
(4) UPPER HOSE
(5) WATER HOSES